Mask strap cushion



FIG. 1 is a perspective view of a mask strap cushion embodying our new design having an indefinite length;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a top plan view of FIG. 1, and the bottom plan view being a mirror image thereof;

FIG. 4 is a rear elevational view of FIG. 1;

FIG. 5 is a left side elevational view of FIG. 1;

FIG. 6 is a right side elevational view of FIG. 1;

FIG. 7 is a perspective view showing a variation of the mask strap cushion embodying our new design having an indefinite length;

FIG. 8 is a front elevational view of FIG. 7;

FIG. 9 is a top plan view of FIG. 7, and the bottom plan view being a mirror image thereof;

FIG. 10 is a rear elevational view of FIG. 7;

FIG. 11 is a left side elevational view of FIG. 7; and,

FIG. 12 is a right side elevational view of FIG. 7.

The broken lines illustrate environmental structure that form no part of the claimed designed. 

CLAIM We claim the ornamental design for a mask strap cushion, as shown and described. 